Add GetRealPixelClientSize() method to HiDPIAware and implement using
wx GetClientSize() in panel.cpp for the generic version, and using
convertSizeToBacking: in macsupport.mm .
Add an AdjustViewport() method to GLDrawingPanel that sets glViewport()
using GetRealPixelClientSize(), and call it for the SIZE event. Debug
print the viewport size here instead of in DrawingPanelInit().
Build improvements:
* default to Cairo off for all platforms, currently libcairo2-dev does
not install on Ubuntu
* default to ON for ENABLE_LINK and ENABLE_FFMPEG (for game recording),
this will allow for more fully-featured default builds
* do not set SFML_STATIC_LIBRARIES on Mac because this is currently
broken
* fix the Mac bundling/linking script to deal with links in dependent
libs that already use @rpath (very minor change.)
30f80ab22b